Strainer



Sept. 2, 1941.'

T. WH EATLEY STRAINER 2 Sheet-Sheet 1 Filed Dec. 8, 1938 we Hi1" M154 m:Y

Sept. 2, 1941.

T. WHEATLEY STRAINER Filed Dec. 8, 1958 2 Sheets-Sheet 2 o o oooo ooc cqooo o o ooopofiooooeq o|o oo ooooooooooso oooooooooooooooosooodooooooooooooooopo oo'oo ooooooooooooooo 0'0 00 0000000000000 o0olooooooooooooooood'b o ooooooooooooooooo o oooooooooooooooooo oooooooooooooooooooo ooooooooooooooooo oo omoooooooooooooooooooopoopoooooooogooe oooopoooooooooqoooo oooooopoooooooooooooooooooeooeooooaoo ooooooooooooooooooo oo 00000000000'000000 oo-ooooooooooooooo-mo OO OOO OOOO Patented Sept. 2, 1941 UNITED STATES A'r 'rOFFICE STRAINER Thomas Wheatley; Houston, Tex. Application December 8,1938, Serial No. 244,511

3 Claims.

This invention relates to a strainer.

An object of the invention is to provide a strainer of the characterdescribed designed to be incorporated into a fluid conducting line,such, for example, as a pipe line, for collecting solid particles,objects and detritus that may be in the liquid being conducted.

Another object of the invention is to provide a casing adapted to beconnected into a line, a strainer mounted therein and readily removabletherefrom which will collect solid particles and matter from the liquidflowing through the line and which may be readily removed at intervalsfor cleansing aud unclogging the strainer.

A further object of the invention is to provide a strainer embodying anovel type of skeleton or framework with foraminated screening materialthereon, all of special formation to be seated and secured in a strainercasing designed to be incorporated into a fluid conducting line.

With the above and other objects in view, the invention has particularrelation to certain novel features of construction, arrangement of partsand use, an example of which is given in this specification andillustrated in the accompanying drawings, wherein:

Figure 1 shows a perspective sectional View.

Figure 2 shows a transverse sectional view taken on the line 22 ofFigure 1, and

Figure 3 shows a transverse sectional View of the strainer, apart fromthe casing.

Referring now more particularly to the drawings, wherein like numeralsof reference designate the same parts in each of the figures, thenumeral l designates a strainer casing having the tubular endconnections 2, 3 formed for the connection of adjacent sections of aflow line thereto. As shown the connections 2, 3 have the externalannular flanges 4, 5 for forming said connections with the adjacentsections of the line.

The casing I has the external, approximately rectangular top flange 6and has a removable cover plate I, the margins of the cover plate andtop flange being provided with registering notches 8, 9 to receive thesecuring bolts Ill. The lower ends of these bolts have the heads llengageable with the under side of the flange 6 and the clamp nuts l2which are threaded on the upper ends of the bolts to clamp the coverplate in place. The cover plate forms a close fitting joint i3 with thetop of the casing whereby to prevent leakage.

Within the casing I there is a basket-like strainer which is composed ofthe perforated end plates I4, 15 connected by the perforated anchor barsl6, [6 which are arcuate in cross section as is more accurately shown inFigure 2. The end plates and anchor bars are formed of any selectedmaterial and form a rigid skeleton, or framework. The up-stream endplate M is provided with an inlet opening [T which registers with thepassageway through the inlet end connections 2. The top, bottom and sidewalls of the strainer are formed of suitable foraminated material suchas durable wire mesh, whose ends are anchored to the correspondingmargins of the end plates l4, l5 and at the bottom this material fitsclosely within the anchor bars l6, l6, and is supported thereby.

As will be noted, the end plate l4 fits closely against the up-streamend of the casing I, around the inlet opening and the strainer issupported on suitable bottom supports IS in the casing and is maintainedin spaced relation with the side Walls of the casing by the insidespacers 20 as more accurately shown in Figure 2. The end plate I5 isspaced from the downstream or outlet passageway of the casing so as tonot block or restrict said outlet casing, and abuts the spaces 24,extending inwardly from the opposing end of the casing.

Upstanding from the end plates [4, 15 are the grips or handles 2|, 2|,against which the cover I abuts when in closed position.

The liquid flowing through the line will enter the strainer as indicatedby the arrows in Figure 1 and will be forced to pass out through thescreening material l8 and can pass also through the perforated endplates into the space around the strainer from which it may pass onthrough the outlet.

All solid particles carried by the liquid will be entrapped within thestrainer and can thus not reach nor interfere with the operation of thepumps.

From time to time the strainer should be removed for cleansing and thismay be easily accomplished by removing the bolts l0 and opening thecover plate 1 so that the strainer may be readily lifted out, cleansedand replaced.

The casing I is provided with a drain opening 22, normally closed by aplug 23 and through which solid material collecting in the bottom of thecasing may be removed.

The drawings and description disclose what is now considered to be apreferred form of the invention, by way of illustration only, while thebroad principle of the invention will be defined by the appended claims.

What I claim is:

1. A strainer assembly comprising a casing having an inlet and an outletin alignment with the inlet, a removable cover on the casing and forminga fluid tight joint therewith, a strainer in the casing comprising endplates, anchor bars connecting the end plates, said strainer having aforaminated top, bottom, and sides and Whose margins are secured to theend plates, the upstream'end plate havingan opening which registers withsaid inlet, grips upstanding from the strainer and abutting the cover.

2. A strainer assembly comprising a casing having an inlet and an outletin alignment with the inlet, a removable cover on the casing and forminga fluid tight joint therewith, a strainer in the casing comprisingforaminated end plates,

anchor bars connecting the 'end plates, said which registers with saidinlet, and means for spacing the strainer from the casing walls.

3. A strainer assembly for liquid conducting lines comprising a casinghaving an inlet opening and an outlet opening in alignment with theinlet opening, a removable cover for the casing which is parallel to theaxis of the openings, a removable strainer in the casing havingperforated end plates, anchor bars connecting the end plates, a top,bottom and side walls for the strainer formed of foraminated material,the bottom of the strainer being located an appreciable distance beneaththe lower side of said openings and the upstream end plate having anopening in registration with the inlet opening, spacing means in thecasing abutting the downstream end of the strainer and maintaining saiddownstream end spaced from the downstream end of the casing andmaintaining the upstream end of the strainer in close contact with thecorresponding upstream end of the casing, upstanding bottom supports inthe casing supporting the strainer spaced from the bottom of the casingand inside spacers spacing the strainer from the sides of the casing.

THOMAS WHEATLEY.

